CVE-2021-27491
No exploitation reported by the sources we read.
- Published2021-07-30
- Fixed in1.7.5
- WeaknessCWE-522
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Ypsomed mylife Cloud, mylife Mobile Application:Ypsomed mylife Cloud,All versions prior to 1.7.2,Ypsomed mylife App,All versions prior to 1.7.5,The Ypsomed mylife Cloud discloses password hashes during the registration process.
Timeline
dates in UTC- 2021-07-3022:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-27491?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-27491?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.7 | < 1.7.5 | 1.7.5 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.7 | < 1.7.2 | 1.7.2 | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
ICSMA-21-196-01_Ypsomed mylife
Ypsomed mylife App: All versions prior to 1.7.5 · Ypsomed mylife Cloud: All versions prior to 1.7.2
Fix
- Update Ypsomed mylife to 1.7.5
- Mitigation from the vendor CISA ICSMA-21-196-01 · 2 productsYpsomed has taken action to update the affected mylife Cloud backend services to mitigate the vulnerabilities affecting the mylife Cloud in versions prior to 1.7.2. Ypsomed recommends users with the affected mobile application to update to the latest available application Version 1.7.5 or later.
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.17.5read 2026-10-23
- NVDCVSS 2.05read 2026-10-23
- CNAweakness (CWE)CWE-522read 2026-10-23
- FIRST EPSSEPSS score1.1 %2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Published
- 2021-07-30
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2021-27491?
Is CVE-2021-27491 actively exploited?
What is the CVSS score for CVE-2021-27491?
Running ICSMA-21-196-01_Ypsomed mylife? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.